[Featureserver] GeoJSON, setting CRS in FeatureServer/OpenLayers
Josh Livni
mailing_lists at umbrellaconsulting.com
Mon Dec 17 12:04:09 EST 2007
I'd expect a patch to read an additional crs or (srid or whatever)
>>> parameter in the cfg file would be easy, but I'm not sure if that's the
>>> appropriate place to put that sort of info (What happens your datasource
>>> has multiple srids, but your query result only displays one? No idea...)
>>>
>> Why not store (and return) an individual CRS for each feature?
>>
>
> Store where? Keep in mind that with the exception of the DBM and sqlite
> datasources, we don't have any way to add columns to store additional
> attributes: we simply represent the data as it is.
>
> Regards,
>
And PostGIS. While many folks set a constraint on their geometry column
so that only one SRID is allowed, there's certainly nothing stopping you
from having each row be in a different projection -- I've even seen it
done - on purpose! This example is what led me to my first comment
about being unsure.
But now I feel more sure that the most reasonable place this info should
be stored, to deal with the most use cases, is definitely with the
featureserver layer configuration.
Of course, I have no use-case where I need this attribute, and perhaps
those who actually do need it might have a more informed opinion on the
matter than me....
-Josh
More information about the Featureserver
mailing list